1 // { dg-do assemble  }
2 
3 typedef const struct {
4    int x;
5 } Test;
6 
7 static void foo(Test);
8 
foo(Test t)9 static void foo(Test t)
10 {
11   t.x = 0; // { dg-error "" } assignment of read-only member
12   return;
13 }
14